VNIIMETMASH - Products - Planetary mills with work rolls of variable profile


Planetary mills with work rolls of variable profile

These mills are intended for production of cylindrical and profile rolled (mainly copper) tubes or rods from heavy non-ferrous (including high-heat) metals.

Advantages are:

deformation in the closed groove under conditions which are close to overall reduction provides with 90-97% reduction (drawing by 10…40 times) during one pass; it secures the rolling of the most hard deforming metals (Mo, Nb, W) directly from the powder billet;
manufacturing of products with higher mechanical and physical properties (homogeneity of the structure, ductility and electric conduction);
during tube production, planetary mill replaces 2…4 mills of conventional design; it can produce high-quality hollow section; during rod production, the mill replaces 15…20 passes at rotary swagers or drawing equipment.

Technical characteristic

Mill	Mill 20	Mill 30	Mill 60
Maximum sizes of billet cross-section (circles, square), mm	20,18	34 х 4,5	65 х 8
Minimum sizes of billet cross-section (ring, square, section), mm	3	8...10	12
Wall thickness, mm		0,8...1,0	1,0...1,5
Maximum rate of rolled products yield, m/min	15	25	35
Installed capacity of electrical equipment, kW	146*	80	120
Overall sizes of mill, mm	4100х2350 х2250	12000х2350 х2250	14000х3200 х3200
Mill mass, t	10	12	60

* - including the power heating facility 100 kW; rolling is made in the protective atmosphere.

Cooperation proposals:

Manufacturing of planetary mills;
Tests and mastering mills at the customer;
Organization of co-production.